master cc78db98f17: ; Backward compatibility for variables set via 'setopt--set-local' (bug#81120)

branch: master
commit cc78db98f1774e2f3bc9f5df60c1fccb6f9f36da
Author: Stéphane Marks <[email protected]>
Commit: Eli Zaretskii <[email protected]>

    ; Backward compatibility for variables set via 'setopt--set-local' (bug#81120)
    
    Ensure that buffer locals are set despite setters not supporting
    'buffer-local (signaling an error is too heavy handed).
    
    * lisp/cus-edit.el (setopt--set-local): If the defcustom setter
    does not support 'setopt-local', warn and set the buffer local.
---
 lisp/cus-edit.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index f592a913546..18e649987f2 100644
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -1181,7 +1181,8 @@ Consult `setopt-local-type-mismatch'."
                        (lambda (x v &optional _) (set-local x v)))
                    variable value 'buffer-local)
         (wrong-number-of-arguments
-         (error "The setter of %S does not support setopt-local" variable))))))
+         (warn "The setter of %S lacks support for setopt-local" variable)
+         (set-local variable value))))))
 
 ;;;###autoload
 (defun customize-save-variable (variable value &optional comment)